Country name 2000 2001 2002 2003 2004
Timor-Leste 4
Mongolia 5
Turkey 10
Mexico 10
Jamaica 12
Egypt, Arab Rep. 14 12
Indonesia 13
Nigeria 18
El Salvador 22
Philippines 23
Kenya 27
Burkina Faso 30
Ghana 31
Northern Mariana Islands
Lesotho
Bahamas, The
South Sudan
Bahrain
Mauritius 4
Bangladesh 18 15
Rwanda 36
Barbados
Albania 1
Belarus
Madagascar 25
Belgium
Mozambique 19
Belize
Peru 14
Benin 28
Sierra Leone
Bermuda
Suriname
Bhutan
Australia
Bolivia 23
Lithuania
Bosnia and Herzegovina
Mali 30
Botswana
Monaco
Brazil
Azerbaijan 12
Brunei Darussalam
Palau
Bulgaria
Puerto Rico
Austria
Saudi Arabia
Burundi 29
Slovenia
Cabo Verde
St. Lucia
Cambodia 33
Syrian Arab Republic
Cameroon 21
Tunisia 12
Canada
Zambia 28
Cayman Islands
Libya
Central African Republic
Macao SAR, China
Chad 21
Malaysia
Chile
Marshall Islands
China 2
Micronesia, Fed. Sts.
Colombia 10
Montenegro
Comoros
Namibia 24
Congo, Dem. Rep.
Niger
Congo, Rep.
Oman
Costa Rica
Papua New Guinea
Cote d'Ivoire
Poland
Croatia
Romania 12
Cuba
San Marino
Curacao
Serbia
Cyprus
Sint Maarten (Dutch part)
Czech Republic
Somalia
Denmark
Sri Lanka 18
Djibouti
St. Vincent and the Grenadines
Dominica
Sweden
Dominican Republic 12
Tanzania
Ecuador 7
Tonga
Aruba
Turkmenistan 13
Armenia 18
West Bank and Gaza
Equatorial Guinea
Middle East (developing only)
Eritrea 29
Liberia
Estonia
Liechtenstein
Ethiopia 37
Luxembourg
Faeroe Islands
Macedonia, FYR
Fiji
Malawi 30 30
Finland
Maldives
France
Malta
French Polynesia
Mauritania 32
Gabon 28
Angola
Gambia, The
Moldova
Georgia 24
Andorra
Germany
Morocco 12
Netherlands
Myanmar 19
New Zealand
Nepal 28
Greece
New Caledonia
Greenland
Nicaragua 15
Grenada
American Samoa
Guam
Norway
Guatemala 28
Pakistan 33
Guinea
Panama
Guinea-Bissau
Paraguay 7
Guyana
Algeria
Haiti 40
Portugal
Honduras 11
Qatar
Hong Kong SAR, China
Russian Federation
Hungary
Samoa
Iceland
Sao Tome and Principe
India 21
Senegal
Argentina
Seychelles
Iran, Islamic Rep.
Singapore
Iraq
Slovak Republic
Ireland
Solomon Islands
Isle of Man
South Africa 14
Israel
Spain
Italy
St. Kitts and Nevis
Antigua and Barbuda
St. Martin (French part)
Japan
Sudan
Jordan 15
Swaziland
Kazakhstan
Switzerland
Tuvalu
Tajikistan
Ukraine
Thailand
United Kingdom
Togo
Uruguay
Trinidad and Tobago
Vanuatu
Afghanistan
Vietnam 7
Turks and Caicos Islands
Kiribati
Uganda 35
Korea, Dem. Rep.
United Arab Emirates
Korea, Rep.
United States 6
Kuwait
Uzbekistan
Kyrgyz Republic
Venezuela, RB
Lao PDR 40
Virgin Islands (U.S.)
Latvia
Yemen, Rep.
Lebanon
Zimbabwe

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